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Choke for magnetron

A choke coil and magnetron technology, applied in the field of magnetrons, can solve the problems of unsatisfactory clutter absorption effect, affecting the EMC test of related frequency bands, etc., to achieve the effect of easy implementation, simple structure and reliable performance

Active Publication Date: 2011-06-08
GUANGDONG GALANZ GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after testing, it was found that the clutter absorption effect of the choke coil structure of this magnetron in the 0-1GHZ frequency band is not ideal, which directly affects the EMC test of the relevant frequency band.

Method used

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  • Choke for magnetron

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Experimental program
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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0012] see Figure 1-Figure 2 , the choke coil of the magnetron, including the first magnetic core inductor 12, the second magnetic core inductor 14 and the third magnetic core inductor 16 connected in series in sequence, the first magnetic core 11 is arranged on the first magnetic core In the dense winding of the inductor, the second magnetic core 17 is sheathed in the dense winding of the second magnetic core inductor and the dense winding of the third magnetic core inductor, the first magnetic core and the second magnetic There is a gap D1 between the cores, D1=3-6mm. The first magnetic core inductor 12 and the second magnetic core inductor 14 are connected through the loose winding of the first air core inductor 13 . The second magnetic core inductor 14 and the third magnetic core inductor 16 are connected through the loose winding of the fourth m...

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Abstract

The invention discloses a choke coil of a magnetron, wherein the choke coil is connected between a core through capacitor terminal and a cathode terminal and comprises a first magnetic core inductor, a second magnetic core inductor and a third magnetic core inductor which are connected serially and sequentially; a first magnetic core is arranged in dense winding of the first magnetic core inductor; a second magnetic core is sleeved in dense winding of the second magnetic core inductor and dense winding of the third magnetic core inductor; a gap D1 is reserved between the first magnetic core and the second magnetic core; the first magnetic core inductor and the second magnetic core inductor are connected through scattered winding of a first hollow inductor; and the second magnetic core inductor and the third magnetic core inductor are connected through scattered winding of a fourth magnetic core inductor. The choke coil is formed by combining a plurality of sections, so a plurality of filter circuits are formed, clutter with lower frequency bands in circuit of the choke coil of the magnetron is effectively absorbed, and the magnetic cores are prolonged, so as to contribute to the absorption of clutter between 0 and 1GHZ frequency band better.

Description

technical field [0001] The invention relates to a magnetron, in particular to a choke coil of the magnetron in a high-frequency heating device. Background technique [0002] Magnetron is a reentrant resonant cross-field oscillator and a high-power source in microwave technology. It is mainly composed of resonant system, cathode assembly and energy output device. After reaching a certain temperature, electrons start to be emitted, and the emitted electrons generate a high-speed rotating electron cloud (that is, a high-frequency field) in an orthogonal DC electromagnetic field. When the rotation of the electron cloud is synchronized with the resonant cavity, the electron cloud transfers energy to the resonant system. , to generate microwaves, and then the microwaves are output by the energy output system to the waveguide of the used components such as microwave ovens. [0003] The resonant system is composed of 10 uniform small resonant cavities, but due to factors such as te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J23/54H01J25/50
Inventor 陈锦聪
Owner GUANGDONG GALANZ GRP CO LTD
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